ionic-epubjs

Sample project of how to use Epub.js in an Ionic 3 app.

How Epub.js is integrated

As just natively importing Epub.js after installing it via npm unfortunately doesn't work, I copied over the build directory of the npm package of epubjs from /node_modules/epubjs to /src/assets/epubjs and included epubjs.min.js in index.html. That way the ePub object is globally available and can be used in Typescript after declaring it with declare var ePub: any;.

Functionality

• Open books
  • Load and render locally available books from /assets/books
  • Switch between different books
• Reading UI
  • Tap through pages by using "next" and "previous" buttons
  • Swipe pages to go to next or previous page
  • Tap the page to toggle a reading mode with no UI
  • Display page number the reader is currently on
  • Display total number of pages in book
  • Display chapter title the reader is currently in
• Table of Contents
  • Show the table of contents of a book
  • Tap chapter to go there
• Settings
  • Change font size
  • Change background color (and with it text color)
  • UI automatically adapts the toolbar color depending on the chosen background and text color
  • Change font family

Development

1. Clone the repo
2. Run npm install
3. Run ionic cordova prepare
4. Run ionic serve or ionic cordova run android|ios

Information + Resources

• Good to know

  • Cfi = EPUB Canonical Fragment Identifiers
  • EPUB is a registered trademark of the IDPF

• Epub.js

  • https://github.com/futurepress/epub.js
  • https://github.com/futurepress/epub.js/blob/master/documentation/README.md
  • https://github.com/futurepress/epub.js/blob/master/documentation/README.md#methods
  • https://github.com/futurepress/epub.js/blob/master/documentation/README.md#events
  • https://github.com/futurepress/epub.js/wiki/Tips-and-Tricks
  • Examples
  • http://futurepress.github.io/epub.js/
  • https://github.com/futurepress/epub.js/tree/master/examples

Related projects

• There is a Ionic v1 based "Ionic Reader" that also uses Epub.js. It claims to "fix iOS flickering" and also has additional features "Last location, Go to location, Bookmarks, Highlights"